In the wake of cofounder exits, Elon Musk's hands-on management is reshaping the startup.

"I feel for the guy. "I don't think he's a happy person," Sam Altman said of Elon Musk.

Add Yahoo as a preferred source to see more of our stories on Google. At the World Economic Forum in Davos, Switzerland, earlier this month, Elon Musk said artificial intelligence will exceed ...

The world's wealthiest man plans to launch up to a million satellites into orbit, creating vast, solar-powered data centres.